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Verified CRO data Updated 2026-05-16

O NEILL BROS REINFORCED CONCRETE LIMITED

● Active

Active Irish company in Dublin, incorporated 6 May 2020 — NACE 43.29, CRO 670401.

CRO 670401 Incorporated 6 May 2020 NACE 43.29 Dublin

Overview

O Neill Bros Reinforced Concrete Limited is a company registered in Ireland with CRO number 670401. The company operates as O'Neill Bros Master Joiners in Londonderry, Northern Ireland, offering heritage and restoration joinery services. The business provides bespoke residential and commercial joinery solutions, including custom joinery products, and has over six decades of experience serving clients across Northern Ireland. It operates from Site 18 Pennyburn Industrial Estate, Londonderry, BT48 0LU, with business hours Monday to Friday 8:30–17:30 and by appointment on Saturdays. The contact details include a telephone number 028 7126 2701 and an email address [email protected]. The website highlights completed residential and commercial projects. The name suggests a focus on joinery and restoration, though the official company name indicates a reinforced concrete business, which may reflect a name mismatch or historical rebranding. Beyond registry-level identification, no further business details are publicly captured.

Location & registered address

Whitestown Stables
Whitestown
Oldtown
Dublin
Ireland

Industry classification

NACE Rev. 2 — 43.29

→ All NACE 43.29 companies in Ireland In Dublin

Company facts

Sourced from Companies Registration Office (CRO)

Legal name

O NEILL BROS REINFORCED CONCRETE LIMITED

CRO number

670401

Status

Active

Legal form

Ltd - Private Company Limited By Shares

Incorporated

6 May 2020

Operating years

6 years

Registered county

Dublin

Registered office

WHITESTOWN STABLES, WHITESTOWN, OLDTOWN, DUBLIN, Ireland

Last annual return

30 September 2024

Last accounts

30 September 2024

Frequently asked questions

What does O NEILL BROS REINFORCED CONCRETE LIMITED do?

O Neill Bros Reinforced Concrete Limited is a company registered in Ireland with CRO number 670401. The company operates as O'Neill Bros Master Joiners in Londonderry, Northern Ireland, offering heritage and restoration joinery services.

Where is O NEILL BROS REINFORCED CONCRETE LIMITED based?

O NEILL BROS REINFORCED CONCRETE LIMITED's registered office is at Whitestown Stables, Whitestown, Oldtown, Dublin, Ireland.

When was O NEILL BROS REINFORCED CONCRETE LIMITED founded?

O NEILL BROS REINFORCED CONCRETE LIMITED was incorporated with the Irish Companies Registration Office on 6 May 2020, more than 6 years ago.

Is O NEILL BROS REINFORCED CONCRETE LIMITED still active?

Yes. The company is listed with the Companies Registration Office under status 'Normal' as of the most recent filing on 30 September 2024.

What is the CRO number for O NEILL BROS REINFORCED CONCRETE LIMITED?

670401.

Where this data comes from

CRO Open Data data.gov.ie/dataset/companies-register Weekly All factual fields
AI synthesis Qwen3-4B-Instruct (locally hosted) 2026-05-16 Prose summary only

About this summary — the prose Overview above is generated by an LLM from the cited sources. Factual fields (CRO number, status, dates, address, NACE code) come directly from the Companies Registration Office. If you spot an error, please report it →

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